ADP170(RevC) 데이터 시트보기 (PDF) - Analog Devices
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ADP170 Datasheet PDF : 20 Pages
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Data Sheet
–30
–40
–50
–60
300mA
200mA
100mA
–70
10mA
1mA
–80
–90
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 17. Power Supply Rejection Ratio vs. Frequency, VOUT = 3.0 V
–30
3V, 1mA
1.8V, 1mA
0.8V, 1mA
–40
3V, 300mA
1.8V, 300mA
0.8V, 300mA
–50
–60
–70
–80
–90
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 18. Power Supply Rejection Ratio vs. Frequency, Various Output
Voltages and Load Currents
10
1
0.8V
1.8V
3.0V
0.1
0.01
10
VIN = 3.6V
ILOAD = 10mA
COUT = 1µF
100
1k
10k
FREQUENCY (Hz)
Figure 19. Output Noise Spectrum
100k
ADP170/ADP171
70
3V
60
50
40
1.8V
30
0.8V
20
10
0
0.001
0.01
0.1
1
10
LOAD CURRENT (mA)
100
1000
Figure 20. RMS Noise vs. Load Current and Output Voltage
ILOAD
1mA TO 300mA LOAD STEP,
2.5A/µs
1
VOUT
2
VIN = 3.6V
VOUT = 1.8V
CH1 200mA Ω CH2 50.0mV BW M40.00µs A CH1 124mA
T 160.680µs
Figure 21. Load Transient Response, CIN and COUT = 1 μF
ILOAD
1mA TO 300mA LOAD STEP,
2.5A/µs
1
VOUT
2
VIN = 3.6V
VOUT = 1.8V
CH1 200mA Ω CH2 50.0mV BW M40.0µs A CH1 204mA
T 159.800µs
Figure 22. Load Transient Response, CIN and COUT = 4.7 μF
Rev. C | Page 9 of 20
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